Investigating Effective Factors on Dividend Ratio in Tehran Stock Exchange

The purpose of this study is investigating Effective factors on Dividend ratio in Tehran Stock Exchange. Accordingly, the required data was collected from 102 corporations in Stock Exchange between the years 1384 and 1391, and the regression model of compound data was utilized to investigate the hypotheses. The variables affecting the dividend ratio cy in corporations were set as: Investment opportunities and corporate finance, profitability proportion, company size, and two other economic factors, namely gross domestic product and inflation rate. Therefore, six hypotheses were set to study the issue. The results of the investigation showed a meaningful and negative relationship between investment opportunities and corporate finance and rate of gross domestic product, and a meaningful and positive relationship between profitability proportion and company size, while no relationship was observed between inflation rate and dividend ratio in Iran market.